Electric connector.



l. BERG.

ELECTRIC COl\J=\kECLTOR` AvPLicATmN man lun 2o, m

laltvntefd J uly El. ISHS` UNITED sTATEs PATENT oEEIoE.

JOHN BERG, OF CHICAGO., ILLINOIS, ASSIGNOR TO METAL SPECIALTIES MANUFAC` TUBING COMPANY, 0F CHICAGO, ILLINOIS, A `CORPORATION' 0F ILLINOIS. 'V

ELECTRIC CONNECTOR.

To all 'whom it may concern:

Be it known that I, JOHN BERG, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Electric Connectors, of which the following is a specification.

This invention relates particularly to electric-connectors, such as are used for connecting electric-conductors together, or for connecting electricconductors to any electrical device, such as an electric-lamp, or other electrical device. The primary object is to provide a connector with an improved switch device, whereby the circuit may be established or broken with facility, as desired.

The invention may be employed very advantageously in connection with either a gaish-lamp or an exploring lamp for automo- The invention is illustrated in its preferred embodiment in the accompanying drawing, in Which- Figure 1 represents an elevational view of a dash-lamp carried by a connector equipped with my improvement, the oonnector being mounted on a dash, which is shown in section; Fig. 2, a bottom plan view of the connector and the dash-lamp shown in Fig. 1; Fig. 3, a vertical sectional view taken as indicated at line 3 of Fig. 2; Fig. 4, a sectional view taken as indicated at line 4 of Fig. 3; Fig. 5, a sectional view taken as indicated at line 5 of Fig. 3; Fi 6, a similar sectional view, looking in t e opposite direction as indicated by the arrows numbered 6 in Fig. 3; and Fig. 7, a sectional view illustrating a modification.

Referring to Figs. 1 to 6, inclusive, A represents the improved connector, which, in this form is adapted to be mounted upon an automobi e dash, and whichY is shown equipped with a removable guard A1, which serves also as a refiector; B, a lamp or electric bulb removably mounted in one end of the connector A; and C, a dash of an automobile body, to which the connector A may be conveniently attached.

In the construction illustrated, the connector A comprises a metal shell or sleeve 1, one end of which is provided with a bayonet slot 2 for securin the lamp B, and the other end of which is tted with a plug 3, which Specification of Letters Patent.

Application llled July 20, 1917.

Patented July a, Lalo.

Serial No. 181,893.

is equipped with spring-contacts; anda revoluble switch-disk 4 locatedin the l` between the lamp and the plug` 3,1 said switch-disk being provided with conductors 4 which extend therethrough vand have .ex-

tremities which project somewhat, beyond, contact" shell 1 is rovided at diametrically opposite points. he pin 5 is equipped with an actuating handle 5a.

The shell 1 is, in the form being described, equipped at one end with a flan e 1, which is adapted to be secured to the ash Cgafnd is equipped at the opposite end with an annular holder 1b which receives snugly the rear end of the reflector or guard AT.

The lamp B has its shank equipped with the usual lateral studs 7 which e a e the bayonet slots 2 of the shell 1; andgdgie shank7has at its inner end the smooth .contacts The plug 3 preferably comprises a` disk 3a of insulating material, such as hard-rnbber; a pair of segmental spring-contact members 3" disposed adjacent to the switch-disk 4 and having Shanks extending through slots in the disk 3; and a sleeve of insulating material interposed between the Shanks of the members 3" and the shell 1. The disk 3EL and the sleevec are se ured withinthe base portion of the shell 1 by a. pin 8.ffIt will be understood that the Shanks of the contact-members 3" afford conductors which extend through the plug 3, and the rear ends of the sai Shanks are equipped with sockets 3i adap d for connection withconductors. A",

The lian e 1* at the base end of thelell 1 is suitab y formed from a disk of metal,

which is perforateciland provided with' a slbeve-portion which is rigidl'iy fitted on the endortion of the"`shell. he holder 1*' whic receives the guard A1 is likewise formed from a disk of metal, which is perin segmental median slots 6 with which'the"V forated and provided with a sleeve-portion which is rigidly fitted on the front end of the sleeve or shell 1.

As has been indicated, the switch-disk 4 is interposed between the lamp and the 3. are adapted to register with the conta t members 3", and with the contact-members of the lamp, as shown in Fig. 3. By turning the sW1tchdisk from the position shown Vin Fig. 5, the pin 5 moving through the segmental slots 6, the contact-members 4 will be thrown out of registration with the contact-members 7*1 of the lamp. The ring contact-members 3" are of segmentalgorm, and are inclined orY sloped away from the end of the plu 3. These spring contactmembers are un er suliicient pressure to hold the switch-disk firmly against the base end ofthe lamp. The slots 6 are of sufficient width .to permit a certain amount of longitudinal movement of the switch-disk within theA shell 1. Preferably, however, each slot 6 is provided at one side of its end-portions with recesses 6, which are seperated by a curved edge 6", the convexity of which is preferably suliicient to revent accidental shifting of the switchislr. The stud 5 should be so disposed as to be substantially out of contact with the walls of the recesses 6, in order that the spring-contacts 3h may serve effectively to crowd 'the switch-disk against the base end ofthe lamp.

`In the modification shown in Fig. 7, the construction is similar to that described, ex- .cept that the shell, here designated 1, is tted s' one end with a plug 3', equipped with spring-pressed plunger contacts 3E; and vthe flange 1a for attachment to a dash `is omitted.' The switch-disk 4 is provided, as in the first described construction. In this modilication, also, the plug 3' projects from the shell and is equipped with lateral studs 9 adapted to engage the bayonet slots 10 of a connector 11, which is attached to conductors 12. This enables the lamp to be used as an ex lorin lamp; and it ma be disconnected om t ie connector 11 an inserted in any usual. connector applied to a "dash, so' that thelamp may also be used as a'.4 dash-lamp.

The construction described issimple and thoroughly adapted to its purpose. The

switch-disk is of exceedingly simple 'form and not liable to get out of order. It may be .readily introduced into the shell and the pin 5 carrying the actuating-handle 5"" may 'then be thrust through a close-fitting peroration in the switch-disk, the stud also `extending through the segmental slots 6 of the shell.

@The foregoin Vdescription has been given for clearness o understanding, and no unpl The contact-members of the switch-digg necessary limitation should be understood therefrom.

Whatj regard as new, and desire to secure by Letters Patent, is:

1. A device of the character set forth, comprising an integral shell provided at one end with bayonet-slots and provided also with a median lateral se ental slot, an annular guard-holder encircli and embracing t e bayonet-slot end o said shell, a plug secured 1n the other end of said shell and equipped at its inner end with s ringf contacts, and a switch-disk of ins ating material within the median portion of said shell and sqil-lipped with an actuati handle extending t rough said segmental ot, said switch-disk being adapted to oscillate with relation to said plug and havinv contactposts extending therethrough an adapted to engage said spring-contacts.

2. A device of the character set forth comprising a shell provided with -median lateral segmental slots having recesses at one -s-ide of their end-portions, a lamp havin a shank secured in one end of said shell an equipped at the inner end with contacts, a plug secured in the other end of said shell and equipped with spring-contacts, and an interposed rotatable sviimh-disk of insulat' ing material adapted to oscillate with rela# tion to both said lamp-shank and plug and provided with a lateral actuating stud which is normally out of engagement with the walls of said slots and provided also with metal contact-posts extending through said disk and having extremities at one end adapted to engage said spring-contacts and extremities at the other end adapted to be thrown into and out of registration with said lam contacts by osci lation of said switch-dis 3. A device of the character set forth comprising a shell provided with a median lateral segmental slot, said shell equipped at one end with a liange for attachment to a dash and eqluipped at the other end with a removable amp-guard, said shell having also bayonet slots at the end which carries said lampard, a lamp having a shank equipped wlth lateral studs engaging said bayonet slots and provided at its inner end with contacts, a plug secured in the opposite end of said shell' and equipped with springcontacts, and an nterpdsed switch-d1sk of insulating material adapted t'o oscillatewith relation to both said lamp-shank and andl provided with contact-posts exten ing therethrough, `said'` switch-disk equipped with a lateral actuating stud wor in a segmentalmediaxi slot with which said shell is provided. x i

JQHN BERG.

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